Most mammals of the Mesozoic were omnivores or unspecialized insectivores . " Fruitafossor " is unique in the degree of specialization, both for digging and in regard to how specialized it was on insects.
32.
They do not appear to be as flexible as those blank cells found in embryos, but some studies suggest it might be possible to make them regress to a relatively unspecialized state and to redirect them into desired cell types.
33.
The midwater fish have special adaptations to cope with these conditions they are small, usually being under; they have slow metabolisms and unspecialized diets, preferring to sit and wait for food rather than waste energy searching for it.
34.
Researchers recently discovered that stem cells are present in the bodies of adults, and some believe it may be possible to persuade other adult cells to regress to an unspecialized state and then to make them evolve into any desired type.
35.
-- A : Stem cells are unspecialized, or " blank, " cells created in the very first days of a pregnancy that can divide for indefinite periods in culture to renew themselves and be induced to become " differentiated " cells.
36.
They are made when an injury occurs and set off the formation of new bone and cartilage by homing in on certain immature, or unspecialized cells, and inducing them to proliferate and become one of several specialized tissues, like bone and cartilage.
37.
As Rifkind's long career went on, he came to be seen as exemplifying the unspecialized, general-practitioner lawyers who were widely supplanted, with the passage of the decades, by specialists who focused on relatively narrow areas of the law.
38.
When conditions deteriorate, for example as temperatures drop, many freshwater species and a few marine ones produce gemmules, " survival pods " of unspecialized cells that remain dormant until conditions improve and then either form completely new sponges or recolonize the skeletons of their parents.
39.
Most myrmecophilous associations are opportunistic, unspecialized, and facultative ( meaning both species are capable of surviving without the interaction ), though obligate mutualisms ( those in which one or both species are dependent on the interaction for survival ) have also been observed for many species.
40.
The breast, the researchers point out, is the only human organ that isn't fully differentiated when the individual is born _ breast cells are still in an immature, unspecialized state, not yet committed to become the milk glands and ducts that will be needed following childbirth.
